User Agent Generator

Online User Agent generator with browser, OS, and device presets to build UA strings quickly, including common templates and custom UA detection.

Generator Settings

Browser

Operating System

Device Type

Generated Result

User Agent String

Choose options to generate automatically

Common Templates

Custom UA Detection

Custom User Agent

Documentation

What is User-Agent Generator

This tool creates User-Agent strings for different browser, OS, and device combinations for testing and API debugging.

Key Features

Generate UA by browser, platform, and device type.
Support random generation and quick switching.
Parse custom UA strings for basic identification.
Copy output instantly for test workflows.

Steps

Select browser, OS, and device options.
Generate or randomize UA output.
Review and copy the generated string.
Optionally paste an existing UA for reverse parsing.

FAQ

Is generated UA equal to a real device environment?

Not exactly. UA is only an identifier string; real behavior also depends on engine capabilities, APIs, and runtime conditions.

Why are there multiple UA variants for one browser?

Different versions, platforms, and release channels produce different UA patterns, so the generator outputs matched variants.